Using CoreOS? See this post instead!
First, insert the guest-tools.iso
supplied with XCP-NG into the DVD drive of the virtual machine.
Then run these commands. Note that this will reboot the machine after it finished
sudo mount -o ro /dev/sr0 /mnt/ cd /mnt/Linux sudo ./install.sh -n sudo reboot
After the VM reboots, XCP-NG should detect the management agent.
Please eject the guest tools medium from the machine after the reboot! Sometimes unneccessarily mounted media cause issues.